Predictors and long-term outcome of super-responders to cardiac resynchronization therapy.

ABSTRACT:

Background

The level of improvement in left ventricular ejection fraction (LVEF) in super-responders to cardiac resynchronization therapy (CRT) is exceptional. However, the long-term prognosis remains unknown in a large population.

Hypothesis

Whether super-responders haven good long-term outcomes.

Methods

We registered 347 patients with primary CRT-D indication. Super-response was defined by LVEF >50% at follow-up echocardiogram. Best-subset regression analysis identified predictors of super-response. Endpoints were major adverse cardiac events (MACE; eg, all-cause mortality or heart failure hospitalization, cardiac death, and appropriate ICD therapy).

Results

Fifty-six (16%) patients with LVEF >50% were classified as super-responders. Female sex (OR: 3.06, 95%

SUBMITTER: Ghani A 

PROVIDER: S-EPMC6490391 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature